Twisted superfluids in moving frame

Abstract

Helical waveguide filled by superfluid is shown to transform rotations of the reference frame $\vec \Omega_{\oplus}$ into linear displacements of the atomic ensemble and vise versa the linear displacements of the reference frame $\vec V$ initialize rotations $\vec \Omega_{\oplus}$ of ensemble. In the mean-field Gross-Pitaevskii equation with a weakly modulated gravitation potential the exact solutions for macroscopic wavefunction $\Psi$ demonstrate the emergence of $redshift$ phase factor. For helical waveguides formed by phase-conjugated optical vortices with high angular momentum $L_z=\pm \ell \hbar \sim \pm \hbar \cdot 10^{3 \div 4}$ one may expect the significant improvement of the phase-sensitivity $\delta \phi$ by factor containing $2 \ell$ compared to the conventional nonsingular matter-wave interferometry.